In futures trading, especially perpetual contracts like SIGNUSDT, there’s something called a funding fee. This fee is paid between traders—either you pay it or you receive it—depending on whether you’re long or short, and on the market’s condition.

Why you lose money or get liquidated even if your trade is profitable:

  1. Funding fees are real costs:

    In the photo, for SIGNUSDT Perpetual, trader paid -35.4978 USDT just as a funding fee.

    • That’s a huge loss if you didn’t make significantly more than that in profit.

  2. Frequent and high fees eat profit:

    • These fees are charged every 8 hours, and if you’re in a popular or over-leveraged position, the fee can be very high.

    • So, even if your position is in profit, your balance shrinks due to funding fees.

  3. Leverage increases risk:

    • If you use high leverage, your margin is small. Even a small fee (like 35 USDT) can bring your margin close to zero, causing liquidation.

  4. You don’t control funding fee:

    • Unlike price movement, funding fees can turn against you, especially in trending markets.

Simple Example:

  • You enter a trade and make +10 USDT in unrealized profit.

  • But during the same period, you pay -35 USDT in funding fees.

  • So your real balance goes down by 25 USDT, and if you don’t have enough margin, liquidation happens.

  • Conclusion:

Even a “winning” trade can destroy your balance if the funding fee is too high and you’re not managing leverage and margin carefully—especially in coins like $SIGN that might have extreme funding rates.